Why do bruthus and Antony speak to the crowd in act lll scene ii of Julius?

In Act III, Scene II of "Julius Caesar," Brutus and Antony address the crowd to sway public opinion after Caesar's assassination. Brutus speaks first, justifying the murder as a necessary act for the freedom of Rome, appealing to reason and honor. Antony follows, using emotional rhetoric and Caesar's will to incite the crowd's feelings, ultimately turning them against the conspirators. This contrast highlights the power of persuasion and the volatility of public sentiment.